Model comparison
o3-mini vs Olmo 3.1 32b Instruct
Olmo 3.1 32b Instruct is the stronger model overall, scoring 39.4 to 36.7 on the Noometry Index.
Last verified . 16 shared benchmarks.
Allen Institute for AI (Ai2)Summary
- They share 16 benchmarks with published results for both. o3-mini scores higher in 5 categories and Olmo 3.1 32b Instruct in 3 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Olmo 3.1 32b Instruct leads 26.4 to 16.3.
- Olmo 3.1 32b Instruct has downloadable open weights; the other is API-only.
Side by side
| o3-mini | Olmo 3.1 32b Instruct | |
|---|---|---|
| Provider | OpenAI | Allen Institute for AI (Ai2) |
| Noometry Index | 36.7 | 39.4 |
| Released | 2024-12-20 | — |
| Weights | Proprietary | Open |
| Context window | 200K | — |
| Max output | 100K | — |
| Input $ / M tokens | $1.10 | — |
| Output $ / M tokens | $4.40 | — |
| Results tracked | 51 | 16 |
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Category by category
Coding o3-mini leads
o3-mini: 40.8 (#132), Olmo 3.1 32b Instruct: 39.5 (#157)
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Coding | 1378 | 1347 |
| Aider Polyglot | 60.4% | — |
| SciCode | 39.8% | — |
| GSO | 1.3% | — |
| WeirdML | 43.7% | — |
| LiveBench Coding | 82.7% | — |
| CadEval | 54% | — |
Agentic & Tool Use Not comparable
o3-mini: 29.6 (#84), Olmo 3.1 32b Instruct: —
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| Cybench | 22.5% | — |
Reasoning Olmo 3.1 32b Instruct leads
o3-mini: 16.3 (#305), Olmo 3.1 32b Instruct: 26.4 (#132)
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Hard Prompts | 1366 | 1322 |
| ARC-AGI-2 | 3% | — |
| SimpleBench | 22.8% | — |
| ARC-AGI-1 | 34.5% | — |
| CritPt | 0.3% | — |
| Chess Puzzles | 17% | — |
| LiveBench Reasoning | 89.6% | — |
| Mystery Game Puzzles | 7% | — |
| DTBench | 68.8% | — |
| LiveBench Data Analysis | 70.6% | — |
| LMCA | 19% | — |
| Epoch Capabilities Index | 140.34 | — |
| ForecastBench | 59.6 | — |
| LiveBench | 75.9% | — |
Math Olmo 3.1 32b Instruct leads
o3-mini: 28.1 (#244), Olmo 3.1 32b Instruct: 36.3 (#167)
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Math | 1396 | 1305 |
| FrontierMath (Tiers 1-3) | 18.6% | — |
| FrontierMath Tier 4 | 0% | — |
| OTIS Mock AIME 2024-2025 | 76.9% | — |
| LiveBench Math | 77.3% | — |
| MATH Level 5 | 96.5% | — |
| FrontierMath (Feb 2025 set) | 12.4% | — |
| FrontierMath Tier 4 (v1) | 4.2% | — |
Knowledge o3-mini leads
o3-mini: 38.3 (#146), Olmo 3.1 32b Instruct: 36.1 (#175)
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Expert | 1364 | 1308 |
| GPQA Diamond | 77% | — |
| SimpleQA Verified | 15.3% | — |
| Confabulations | 17.9% | — |
Multilingual o3-mini leads
o3-mini: 45.7 (#164), Olmo 3.1 32b Instruct: 42.6 (#191)
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Non-English | 1319 | 1275 |
| LMArena Chinese | 1379 | 1304 |
| LMArena French | 1334 | 1328 |
| LMArena German | 1303 | 1282 |
| LMArena Korean | 1314 | 1206 |
| LMArena Russian | 1304 | 1268 |
| LMArena Spanish | 1321 | 1336 |
| LMArena Japanese | 1286 | — |
Instruction Following o3-mini leads
o3-mini: 75.1 (#72), Olmo 3.1 32b Instruct: 68.6 (#187)
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Instruction Following | 1337 | 1299 |
| LiveBench Instruction Following | 84.4% | — |
Long Context Olmo 3.1 32b Instruct leads
o3-mini: 33.8 (#256), Olmo 3.1 32b Instruct: 39.9 (#166)
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Longer Query | 1343 | 1312 |
| Fiction.LiveBench | 50% | — |
Writing & Preference Too close to call
o3-mini: 50.3 (#182), Olmo 3.1 32b Instruct: 50.2 (#185)
| Benchmark | o3-mini | Olmo 3.1 32b Instruct |
|---|---|---|
| LMArena Text | 1337 | 1311 |
| LMArena Creative Writing | 1286 | 1264 |
| LMArena Multi-Turn | 1320 | 1309 |
| Short-Story Creative Writing | 61.7% | — |
| LiveBench Language | 50.7% | — |
Frequently asked questions
Is o3-mini better than Olmo 3.1 32b Instruct?
Olmo 3.1 32b Instruct is the stronger model overall, scoring 39.4 to 36.7 on the Noometry Index.
Is o3-mini or Olmo 3.1 32b Instruct better for coding?
o3-mini scores higher on coding benchmarks: 40.8 versus 39.5 in the Noometry coding category.
How many benchmarks do o3-mini and Olmo 3.1 32b Instruct share?
16 benchmarks have published results for both models. o3-mini has 51 scored results on Noometry and Olmo 3.1 32b Instruct has 16.